久久国产亚洲精品无码_国产精品沙发午睡系列_久久久久久久久无码精品亚洲日韩_日韩人妻无码一区二区三区久久99

1、本閥采用三偏心密封結構，閥座與蝶板幾乎無磨損，具有越關越緊的密封功能。

2、密封圈選用不銹鋼制作，具有金屬硬密封和彈性密封的雙重優點，無論在低溫和高溫的情況下，均具有優良的密封性能，具有耐腐蝕、使用壽命長等特點。

3、碟板密封面采用堆焊鈷基硬質合金，密封面耐磨損，使用壽命長。

4、大規格蝶板采用絎架結構，強度高，過流面積大，流阻小。

5、本閥具有雙向密封功能，安裝時不受介質流向的限制，也不受空間位置的影響，可在任何方向安裝。

6、驅動裝置可以多工位（旋轉90°或180°）安裝，便于用戶使用。

1、齒輪式雙活塞，輸出力矩大，體積小。

2、氣缸選用鋁金材料，重量輕、外形美觀。

3、可在頂部、底部安裝手動操作機構。

4、齒條式連接可調節開啟角度、額定流量。

5、執行器可選帶電訊號反饋指示及各類附件以實現自動化操作。

6、IS05211標準連接為產品的安裝更換提供了方便。

7、兩端調的節螺釘可使標準產品在0°和90°有±4°的可調范圍。確保與閥門的同步精度。

根據不同控制和要求可選擇下列附件：

切斷型附件：單電控電磁閥、雙電控電磁閥、限位開關回訊器。

調節型附件：電氣定位器、氣動定位器、電氣轉換器。

氣源處理附件：空氣過濾減壓閥、氣源處理三聯件。

配套氣動執行器及氣動附件功能和用途（可選）：

1、雙作用執行器：控制閥門的開啟和關閉。

2、單作用執行器（彈簧復位）：在電路氣路切斷或者有故障時自動關閉閥門。

3、單控電磁閥：供電時閥門打開或者關閉，斷電時閥門關閉或者打開（可提供防爆型）。

4、雙控電磁閥：一個線圈通電時閥門打開，另一個線圈通電時閥門關閉，有記憶功能（可提供防爆型）。

5、限位開關回信器：遠距離傳送閥門開和關位置信號（可提供防爆型）。

6、電氣定位器：根據電流信號（4-20mA)的大小對閥門的介質流量調節控制（可提供防爆型）。

7、氣動定位器：根據氣壓信號（標準0.02-0.1MPa)的大小對閥門的介質流量調節控制。

8、電氣轉換器：將電流信號轉換成氣壓信號，與氣動定位器配套使用（可提供防爆型）。

9、氣源處理三聯件：包括空氣減壓閥、過濾器、油霧器、對氣源穩定、清潔、運動部件起潤滑作用。

10、手動(dong)操作：自動(dong)控制(zhi)在不正常(chang)情況下可以手動(dong)操作閥門的啟閉。

單電控電磁閥和雙電控電磁閥的區別：

單電控：即(ji)只有一(yi)個電(dian)(dian)(dian)(dian)磁(ci)線(xian)圈(quan)，一(yi)般(ban)用(yong)在2位3通(tong)電(dian)(dian)(dian)(dian)磁(ci)閥(fa)，線(xian)圈(quan)電(dian)(dian)(dian)(dian)壓等級一(yi)般(ban)采用(yong)DC24V、AC220V等。 兩位三通(tong)電(dian)(dian)(dian)(dian)磁(ci)閥(fa)分為(wei)常閉(bi)型(xing)(xing)和常開型(xing)(xing)兩種，常閉(bi)型(xing)(xing)指(zhi)線(xian)圈(quan)沒通(tong)電(dian)(dian)(dian)(dian)時(shi)氣(qi)路(lu)(lu)是(shi)斷的，常開型(xing)(xing)指(zhi)線(xian)圈(quan)沒通(tong)電(dian)(dian)(dian)(dian)時(shi)氣(qi)路(lu)(lu)是(shi)通(tong)的。 常閉(bi)型(xing)(xing)兩位三通(tong)電(dian)(dian)(dian)(dian)磁(ci)閥(fa)動(dong)作原理：給(gei)線(xian)圈(quan)通(tong)電(dian)(dian)(dian)(dian)，氣(qi)路(lu)(lu)接通(tong)，線(xian)圈(quan)一(yi)旦斷電(dian)(dian)(dian)(dian)，氣(qi)路(lu)(lu)就會(hui)斷開，這相當于(yu)“點動(dong)"。 常開型(xing)(xing)兩位三通(tong)單電(dian)(dian)(dian)(dian)控電(dian)(dian)(dian)(dian)磁(ci)閥(fa)動(dong)作原理：給(gei)線(xian)圈(quan)通(tong)電(dian)(dian)(dian)(dian)，氣(qi)路(lu)(lu)斷開，線(xian)圈(quan)一(yi)旦斷電(dian)(dian)(dian)(dian)，氣(qi)路(lu)(lu)就會(hui)接通(tong)，這也是(shi)“點動(dong)"。

雙電控：即(ji)有兩個(ge)電(dian)(dian)磁(ci)線(xian)(xian)(xian)(xian)(xian)圈(quan)，一(yi)般用(yong)在兩位(wei)五通(tong)(tong)(tong)電(dian)(dian)磁(ci)閥(fa)，兩位(wei)五通(tong)(tong)(tong)雙(shuang)電(dian)(dian)控(kong)電(dian)(dian)磁(ci)閥(fa)動(dong)(dong)(dong)作(zuo)(zuo)原理：給正動(dong)(dong)(dong)作(zuo)(zuo)線(xian)(xian)(xian)(xian)(xian)圈(quan)通(tong)(tong)(tong)電(dian)(dian)，則(ze)正動(dong)(dong)(dong)作(zuo)(zuo)氣(qi)(qi)路接(jie)通(tong)(tong)(tong)(正動(dong)(dong)(dong)作(zuo)(zuo)出氣(qi)(qi)孔有氣(qi)(qi))，即(ji)使給正動(dong)(dong)(dong)作(zuo)(zuo)線(xian)(xian)(xian)(xian)(xian)圈(quan)斷電(dian)(dian)后正動(dong)(dong)(dong)作(zuo)(zuo)氣(qi)(qi)路仍然是(shi)接(jie)通(tong)(tong)(tong)的(de)，將會一(yi)直(zhi)維持(chi)到給反動(dong)(dong)(dong)作(zuo)(zuo)線(xian)(xian)(xian)(xian)(xian)圈(quan)通(tong)(tong)(tong)電(dian)(dian)為止。 給反動(dong)(dong)(dong)作(zuo)(zuo)線(xian)(xian)(xian)(xian)(xian)圈(quan)通(tong)(tong)(tong)電(dian)(dian)，則(ze)反動(dong)(dong)(dong)作(zuo)(zuo)氣(qi)(qi)路接(jie)通(tong)(tong)(tong)(反動(dong)(dong)(dong)作(zuo)(zuo)出氣(qi)(qi)孔有氣(qi)(qi))，即(ji)使給反動(dong)(dong)(dong)作(zuo)(zuo)線(xian)(xian)(xian)(xian)(xian)圈(quan)斷電(dian)(dian)后反動(dong)(dong)(dong)作(zuo)(zuo)氣(qi)(qi)路仍然是(shi)接(jie)通(tong)(tong)(tong)的(de)，將會一(yi)直(zhi)維持(chi)到給正動(dong)(dong)(dong)作(zuo)(zuo)線(xian)(xian)(xian)(xian)(xian)圈(quan)通(tong)(tong)(tong)電(dian)(dian)為止。這(zhe)相當于(yu)“自鎖(suo)"。 基于(yu)兩位(wei)五通(tong)(tong)(tong)雙(shuang)電(dian)(dian)控(kong)電(dian)(dian)磁(ci)閥(fa)的(de)這(zhe)種特性(xing)，在設計機電(dian)(dian)控(kong)制(zhi)回路或編制(zhi)PLC程序的(de)時候(hou)，可(ke)以(yi)讓電(dian)(dian)磁(ci)閥(fa)線(xian)(xian)(xian)(xian)(xian)圈(quan)動(dong)(dong)(dong)作(zuo)(zuo)1~2秒(miao)就可(ke)以(yi)了(le)，這(zhe)樣可(ke)以(yi)保(bao)護電(dian)(dian)磁(ci)閥(fa)線(xian)(xian)(xian)(xian)(xian)圈(quan)不(bu)容(rong)易損壞。

1、偏離管道中心

2、偏離密封面中心

3、傾斜的錐形

當閥門開啟時，蝶板與閥座在關閉時瞬間接觸，利用蝶板偏心1、偏心2迅速脫離閥座，降低了密封副的磨損，磨擦力矩小，開啟靈活。偏心錐面3，使閥門在開啟或關閉時蝶板能通過閥座內孔，實現接觸密封。另外，錐形蝶板的旋轉半徑大于密封副接觸位置的旋轉半徑，故蝶板在閥門關閉時將出現越關越緊，能夠實現自鎖，防止蝶板過位。